John cochran and john r



(No Model.)

J. GOGHRAN & J; 11. BOND.

P0113 SIGHT FOR RIFLES.

No. 428,458. Patented May 20, 1890.

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UNITED STATES PATENT OFFICE.

JOHN COCHRAN AND JOHN R. BOND, OF TOTTENHAM, ONTARIO, CANADA.

FORE SIGHT FOR RIFLES.

SPECIFICATION forming part of Letters Patent No. 428,458, dated May 20, 18.90.

Application filed August 8, 1889. Serial No. 320,105. (No model.)

To all whom it mag cancers.-

Be itknown that we, JOHN OOOHRAN, watchmaker, and JOHN RICHARD BOND, chemist, both of the village of Tottenham, in the county of Simcoe, in the Province of Ontario, Canada, have jointly invented a certain new and Improved Fore Sight for Rifles and other Fire-Arms, of which the following is a specification.

The object of the invention is to design a fore sight in which there shall be an unobstructed view entirely around the bead of the said fore sight, and to support the bead in such a manner that it maybe laterally adjusted to act as a wind-gage; and it consists, essentially, of a cylindrically-shaped bead supported by a plate so thin that the said plate will be practically invisible, the said bead being connected to an adjustable crosshead fitted into a groove formed in the sightblock, the said adjustable cross-head being held taut Within the groove by the action of a spring, substantially as hereinafter more particularly explained.

Figure 1 is a view of a rifle provided wit-h our improved fore sight. Fig. 2 is an enlarged perspective view of our improved fore sight. Fig' 3 is a perspective detail of the bead, its supporting-plate, pillars, and crosshead. Fig. atis a detail of the grooved sightblock.

In all fore sights with which we are familiar the support on which the bead is carried forms an obstruction to a perfect View of the object being sighted-that is to say, if firing at a small bulls-eye, the upper quarter of the bulls-eye may be visible, but the balance is hidden from sight by the bead-support.

In our improved fore sight the bead-support is practically invisible, leaving a clear View entirely around the bead, enabling the marksman to sight the object with absolute accuracy. I

In the drawings, A represents the bead, which we prefer to make cylindrical in shape, as indicated. This bead is connected to the center of a very thin plate B, supported at its ends by posts 0. These posts are connected at their base to a cross-head D, which is designed to fit into a dovetailed groove E, made in the sight-block F. A hole is cut in the bottom of the sight-block F, and a curved spring G is inserted in the said hole, which spring projects above the surface of the bot tom of the groove E, so as to press against 'the bottom of the cross-head D when the latter is inserted in the groove E. A pointerN is fixed to the cross-head D, and a scale is marked on the top surface 01": the sight-block F, so as to indicate the lateral position of the bead A, in order that the said bead may be laterally adjusted to act as a wind-gage.

From this description, when taken in connection with the drawings, it will be observed that a complete unobstructed view is left en tirely around the head A, as the plate D is practically invisible. It will also be noticed that the fore sight can be readily adjusted laterallyto act as a wind-gage,.the curved spring G providing sufficient tension to hold the cross-head stationary, at the same time holding it in such a manner that the marksman may readily adjust it with very slight pressure and without being required to employ any kind of tool other than his fingers.

hat 'we claim as our invention is 1. A fore sight consisting of a bead A, supported by a thin horizontal plate B, supported above the barrel of the gun, substantially as and for the purpose specified. 7

2. A fore sight consisting of a head A, connected to the thin horizontal plate 13, which is supported above the barrel by the vertical posts 0, substantially as and for the purpose specified.

3. A fore sight consisting of a bead A, connected to the thin horizontal plate B, which is supported above the barrel. by the vertical posts 0, connected to the cross-head D, which is fitted into the dovetailed groove formed in the sight-block F, arranged on the barrel, substantially as and for the purpose specified.

, 4. A fore sight consisting of a bead A, connected to the thin horizontal plate B, which posts 0, connected to the cross-head D, which cross-head is fitted into the dovetailed groove formed in the graduated sight-block F, arranged on the barrel and provided with a pointer II and acted upon by the spring G, located beneath the cross-head, substantially as and for the purpose specified.

Totteuham, July 20, 1889.

JOHN COOHRAN. JOHN R. BOND. In presence of- GEO. P. HUGHES, L. O. HUGHES.

is supported above the barrel by the vertical 

